GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 051
501). Consider the following statements :
Assertion (A) : In an electric bulb, the filament is in the form of a coiled coil
Reason (R) : A coiled coil filament occupies less space and is there fore, not cooled significantly by the convection currents in the bulb
A). Both (A) and (R) are true, and (R) is the correct explanation of (A)
B). Both (A) and (R) are true, but (R) is not correct explanation of (A)
C). (A) is true but (R) is false
D). (A) is false, but (R) is true
Answer: Both (A) and (R) are true, and (R) is the correct explanation of (A)
502). Match the items of list I with list II and select the correct answer using the codes given below:
List I List II
a) Range of Audio frequency 1) Kilo Hz
b) Range of AC frequency 2) 20 Hz
c) Range of radio frequency 3) Mega Hz
d) Range of TV frequency 4) 50 Hz
Below codes are given in A B C D order
A). 3 2 4 1
B). 2 4 1 3
C). 1 4 2 3
D). 3 1 4 2
Answer: 2 4 1 3
503). The sudden fall of atmospheric pressure indicates
A). fair weather
B). storm
C). rain
D). cold wave
Answer: storm
504). Which one of the following layers of the atmosphere is responsible for the reflection of radio waves?
A). troposphere
B). stratosphere
C). mesosphere
D). ionosphere
Answer: ionosphere
505). Television was discovered by
A). Becquerrel
B). Bhaba H.J.
C). Bohr
D). Baird J.L.
Answer: Baird J.L.
506). On adding a little antimony to germanium, we get
A). P - type semiconductor
B). n - type semiconductor
C). metallic conductor
D). intrinsic semiconductor
Answer: n - type semiconductor
507). Consider the statements : X rays, I. are not electromagnetic radiations II. are electromagnetic radiations III. have longer wave lengths IV. have shorter wave lengths of the statements:
A). I and III are correct
B). I and IV are correct
C). II and IV are correct
D). II and III are correct
Answer: II and IV are correct
508). Consider the statements : Gemini is, I. a kind of flower II. La planet III. a twin star IV . the third sign of the zodiac Of the statements :
A). III and IV are correct
B). I only is correct
C). II only is correct
D). III only is correct
Answer: III and IV are correct
509). Which one of the following is correctly matched?
A). Radar - to measure the intensity of radiation
B). Pulsar - to measure the pulse of human beings
C). Sonar - for locating the submerged objects
D). Quasar - to measure the energy of a quantum
Answer: Sonar - for locating the submerged objects
510). Which of the following waves / rays are produced by nuclear changes in the atom?
A). infrared rays
B). light waves
C). Gamma -rays
D). X-rays
Answer: Gamma -rays
Assertion (A) : In an electric bulb, the filament is in the form of a coiled coil
Reason (R) : A coiled coil filament occupies less space and is there fore, not cooled significantly by the convection currents in the bulb
A). Both (A) and (R) are true, and (R) is the correct explanation of (A)
B). Both (A) and (R) are true, but (R) is not correct explanation of (A)
C). (A) is true but (R) is false
D). (A) is false, but (R) is true
Answer: Both (A) and (R) are true, and (R) is the correct explanation of (A)
502). Match the items of list I with list II and select the correct answer using the codes given below:
List I List II
a) Range of Audio frequency 1) Kilo Hz
b) Range of AC frequency 2) 20 Hz
c) Range of radio frequency 3) Mega Hz
d) Range of TV frequency 4) 50 Hz
Below codes are given in A B C D order
A). 3 2 4 1
B). 2 4 1 3
C). 1 4 2 3
D). 3 1 4 2
Answer: 2 4 1 3
503). The sudden fall of atmospheric pressure indicates
A). fair weather
B). storm
C). rain
D). cold wave
Answer: storm
504). Which one of the following layers of the atmosphere is responsible for the reflection of radio waves?
A). troposphere
B). stratosphere
C). mesosphere
D). ionosphere
Answer: ionosphere
505). Television was discovered by
A). Becquerrel
B). Bhaba H.J.
C). Bohr
D). Baird J.L.
Answer: Baird J.L.
506). On adding a little antimony to germanium, we get
A). P - type semiconductor
B). n - type semiconductor
C). metallic conductor
D). intrinsic semiconductor
Answer: n - type semiconductor
507). Consider the statements : X rays, I. are not electromagnetic radiations II. are electromagnetic radiations III. have longer wave lengths IV. have shorter wave lengths of the statements:
A). I and III are correct
B). I and IV are correct
C). II and IV are correct
D). II and III are correct
Answer: II and IV are correct
508). Consider the statements : Gemini is, I. a kind of flower II. La planet III. a twin star IV . the third sign of the zodiac Of the statements :
A). III and IV are correct
B). I only is correct
C). II only is correct
D). III only is correct
Answer: III and IV are correct
509). Which one of the following is correctly matched?
A). Radar - to measure the intensity of radiation
B). Pulsar - to measure the pulse of human beings
C). Sonar - for locating the submerged objects
D). Quasar - to measure the energy of a quantum
Answer: Sonar - for locating the submerged objects
510). Which of the following waves / rays are produced by nuclear changes in the atom?
A). infrared rays
B). light waves
C). Gamma -rays
D). X-rays
Answer: Gamma -rays
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